We need to find the area given an interval.
Let's use the Z-score chart.
When z=1.12 , then z =0.8686
and
When z=1.9 then z=0.9713
By subtracting both z values we can find the area under the standard normal distribution.
Hence:
A=0.9713-0.8686
A=0.1027
The area under the standard normal distribution between z=1.12 and 1=1.9 is equal to 0.1027 square unit